sorry as I'm quite ignorant on the subject, but you can't do commit with the SVNWebClient, can you?There is no working copy to make modification and commit the changes, all you can do is to upload/add a file. And of course the logged user is only one, which is available for the log (there is no "author" on the file level).TortoiseSVN also has possibility to commit (like when you make checkout and then checkin) or you simply drag-n-drop in the browser.In any case user must be logged in to SVN. In TortoiseSVN (and in WebClient as classical "remember password" browser feature) you can save your credentials and you'll be logged in automatically, but you can't be logged in twice with the same workspace...